This is normal and legal funding of a political campaign. If you are not happy with it, you should help elect politicians that will back a Constitutional amendment that can close down unlimited contributions via PACs.
The innuendo is that since McCabes wife who is was a minor State politician running for elected office, she was defeated, that McCabe must somehow be tainted in his oversight role (however limited that may be) of the Mueller investigation. There is not even prima facie evidence, rather the innuendo is prima facie absurd. Come back when there is some evidence beyond innuendo.
Wow. You are pretty far gone in regard to understanding this issue.
Fortunately, the IG has it.
Also, in regard "to his being tainted in his oversight of the Mueller investigation" there has not even been any suggestion by me or others that he has oversight of the Mueller investigation. You are too far behind on this issue to comment. Stand down and take notes for a while and see if you can figure out what the issue is.
As I said, the IG has it so your understanding or not is not important.
sheesh.